| 连续刚构桥船桥碰撞的计算模型和动力响应 |
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| 引用本文： | 罗旗帜,何云勇,徐中山.连续刚构桥船桥碰撞的计算模型和动力响应[J].重庆交通大学学报(自然科学版),2010,29(4):501-505. |
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| 作者姓名： | 罗旗帜 何云勇 徐中山 |
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| 作者单位： | 湖南大学,土木工程学院,湖南,长沙,410082;佛山科学技术学院,土木工程与建筑系,广东,佛山,528000;西南交通大学,土木工程学院,四川,成都,610031;佛山科学技术学院,土木工程与建筑系,广东,佛山,528000;华南理工大学,土木与交通学院,广东,广州,510641 |
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| 基金项目： | 国家自然科学基金资助项目，全国优秀博士学位论文作者专项资金资助项目，广东省自然科学基金资助项目 |
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| 摘 要： | 以连续钢构桥为例,基于碰撞理论和边界等代原理,研究了船桥碰撞的计算模型;基于Timoshenko剪切变形理论和Hamilton能量泛函变分原理,考虑桥墩的弯曲、剪切、地基效应和上部结构的影响,导出了碰撞体系的动力微分方程;采用积分变换方法,对碰撞体系的控制微分方程和边界条件进行Laplace变换,在频域内求得波动解;运用Crump逆变换方法,使用数学软件Matlab编程进行数值反演,得到时域内的撞击力和各种动力响应。
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| 关 键 词： | 连续刚构桥 船桥碰撞 计算模型 动力响应 |
Calculation Model and Dynamic Response of Continuous Rigid Frame Bridge in Collision with Ship |
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| LUO Qi-zhi,HE Yun-yong,XU Zhong-shan.Calculation Model and Dynamic Response of Continuous Rigid Frame Bridge in Collision with Ship[J].Journal of Chongqing Jiaotong University,2010,29(4):501-505. |
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| Authors: | LUO Qi-zhi HE Yun-yong XU Zhong-shan |
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| Institution: | LUO Qi-zhi1,2,HE Yun-yong3,XU Zhong-shan2,4 (1.School of Civil Engineering,Hunan University,Changsha 410082,Hunan,China,2.Department of Civil Engineering , Architecture,Foshan University,Foshan 528000,Guangdong,3.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan,4.School of Civil Engineering , Transportation,South China University of Technology,Guangzhou 510641,China) |
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| Abstract: | Based on collision theory and boundary principle,the calculation model of collision between bridge piers,with continuous rigid frame bridge as a case and ships was studied.According to Timoshenko shearing strain theory and Hamilton energy variation principle as well as the bending,shearing and impact of superstructure deflection of bridges,transient vibration equation of bridge piers was deduced.Based on integral transform method,differential equation of the collision system and transformation of boundary c... |
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| Keywords: | continuous rigid frame bridge ship-bridge impact calculation model dynamic response |
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